Improvement in harvesters



, J. A. DUFIELD.

Harvester.

Patented Nov. 1, 1859.

Inventor: f @yu W'bfnes sgs U ITED STATES J. A. DUFIELD, OF MCHENBY, ILLINOIS.

IMPROVEMENT lN HARVESTERS.

Specification forming part of Letters Patent No. 25,960, dated November 1, 1859.

To all whom. it may concern:

Be it known that I, J. A. DUFIELD, of Me- Henry, in the county of McHenry, in the State of Illinois, have invented certain new and useful Improvements in Reapers; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being bad to the accompanying drawings and the letters of reference marked thereon.

The nature of my invention consists in the combination and arrangement of devices, the

peculiarities of which will be' hereinafter fully set forth. 1

To enable others skilled in the art to make and use my machine, I will now describe its construction and operation. 7

In the drawings, Figure 1 is a side elevation. Fig. 2 is a plan view. Fig. 3 is a view of the shaft with the wheels attached. Fig. 4 is a sectional view'of the driving-wheel operating the wheel on the end of the shaft. Fig. 5 is a perspective view of the diamondshaped plates by means of which the cutterbar is operated.

In Fig. l, A represents the frame; B, the driving-wheel, the shaft of which being located near the center of the frame, as shown in the drawings. 0n said shaft pulley g is secured for the purpose ofoperating such devices as may be desired to carry off the .grain when cut. The driving-wheel B is provided with cogs on itsinner side, as fully shown in Fig. l.

H represents a lever, to which is secured the circular piece of metal or wheel 61. Said wheel is provided with pivot-bearings 00 00 at its front and hinder ends.

D represents a shaft, the end of which is attached to cog-wheel (J. Said shaft passes through the lower portion of wheel d, and extends nearly the entire length of the cutterbar. aaa are small wheels,as shown in Figs. 2 and 3. Said wheels are firmly secured to shaft D.

c c c are pins, which are located at regular intervals around wheels at to a, but are so arranged on the circumference of said wheels that when they revolve with the shaft D they will impart a reciprocating motion, as fully shown in Fig. 2.

P is the cutter-bar, to which are secured the diamond-shaped plates F F. Said plates are placed immediately between the pins 0 c on wheels at a, as fully represented in Fig. 2.

K is an adjustable wheel, which is for the purpose of elevating its end of the cutter-bar to alevelwith the opposite end when operated upon by lever H and wheel D. Said wheelK is rendered adjustable by means of pivot-bearings 0 0 o, as shown in Fig. 1.

R represents the finger-bar, which is secured in a substantiai manner to wheel d.

The operation of my machine is as follows Motion being communicated to shaft D by means of driving-wheel B operating wheel 0 on the end of said shaft A, reciprocating motion is at once imparted to the cutters by pins 0 c 0, which operate alternately at the ends of diamond-shaped plates F F. The machine may be thrown either in or out of gear, or regulated to any desired pitch, by means of lever H when the object is to regulate it. Wheel K should be so adjusted as to cause its end of the machine to correspond with the elevation of the opposite end, and thus give the cutter a parallel motion.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

Wheels a a, -provided with pins 00, and diamond-shaped plates F F, in combination with cutter-bar P, shaft D, wheel (1, and lever H, the whole being combined and arranged in relation to each other, substantially as and for the purpose set forth and described.

' J. A. DUFIELD.

Witnesses:

O. Romans, '1. D. MURPHY. 

